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Spot Forecast for Willamette Complex...USFS
National Weather Service Portland OR
331 PM PDT Fri Oct 4 2024

Forecast is based on forecast start time of 1800 PDT on October 04.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...The cooler front that moved through today will erode
overnight and high pressure will once again build. Expecting
clearer skies overnight which will allow for fog to form in
valleys. Temperatures will rise on Saturday in addition to dry with
humidity nearing critical levels. Overnight recovery will be high
though due to an inversion forming at around 4000 ft in elevation.
Elevations above 4000 ft though will experience less recovery as
it will sit in the dry air aloft. Winds will be gusty Saturday
into Sunday morning above 4000 ft.

.TONIGHT...

Sky/weather.........Mostly cloudy then becoming mostly clear.
                    Chance of rain showers in the early evening.
Areas of fog becoming patchy late.
LAL.................1.
Min temperature.....Around 38.
Max humidity........100 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........Southwesterly winds 5-6 mph becoming 6-9 mph
with gusts up to 17 mph after 2400.
Mixing height.......900 ft AGL.
Transport winds.....Southeast around 7 mph.
Haines Index........4 (low).

.SATURDAY...

Sky/weather.........Sunny. Patchy fog in the morning.
LAL.................1.
Max temperature.....Around 77.
Min humidity........33 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........Southwest 6-9 mph with gusts up to 17 mph.
Mixing height.......3900 ft AGL.
Transport winds.....South around 7 mph.
Haines Index........4 (low).

.SATURDAY NIGHT...

Sky/weather.........Mostly clear.
LAL.................1.
Min temperature.....Around 47.
Max humidity........82 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southeast around 5 mph
                    overnight.
 Ridgetop...........Southwest 6-9 mph with gusts up to 17 mph.
Mixing height.......900 ft AGL.
Transport winds.....South around 6 mph.
Haines Index........3 (very low).

.SUNDAY...

Sky/weather.........Sunny.
LAL.................1.
Max temperature.....76-81.
Min humidity........32 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........Southwest 6-9 mph becoming 4-6 mph after 2400.
Mixing height.......5000 ft AGL.
Transport winds.....Southwest around 10 mph.
Haines Index........5 (moderate due to drying).

$$
Forecaster...Muessle
Requested by...Sue Puddy
Type of request...WILDFIRE
.TAG 2423634.0/PQR
.DELDT 10/04/24
.FormatterVersion 2.0.0
.EMAIL spuddy6715@gmail.com,sue_puddy@firenet.gov